Greetings Cheg,
If you press the Alt key on the keyboard in any Messenger window to bring up the menu bar,
click the Tools menu, then Options, then choose the Privacy category, do your contacts appear
there on the Allow or Blocked lists?
If so, you can right-click them and choose Add to Contacts to "restore" them.

Signature
Jonathan Kay
Microsoft MVP - Windows Live Messenger
MSN Messenger/Windows Messenger
MessengerGeek Blog: http://www.messengergeek.com
Messenger Resources: http://messenger.jonathankay.com
(c) 2008 Jonathan Kay - If redistributing, you must include this signature or citation
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> Hi
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> Thanks!